| 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Total Households (thousands) | 4,290.9 | 4,374.8 | 4,450.2 | 4,519.0 | 4,591.0 | 4,673.5 | 4,736.8 | 4,802.3 | 4,878.3 | 4,950.7 | 4,962.1 | 5,023.8 | |
Households by Building Type (thousands) | |||||||||||||
| Single Detached | 2,410.4 | 2,456.6 | 2,498.1 | 2,535.8 | 2,575.3 | 2,620.7 | 2,655.3 | 2,691.2 | 2,732.9 | 2,772.7 | 2,778.3 | 2,812.0 | |
| Single Attached | 600.5 | 617.0 | 632.5 | 647.0 | 661.9 | 678.5 | 692.2 | 706.2 | 721.8 | 736.9 | 742.8 | 756.2 | |
| Apartments | 1,258.1 | 1,279.5 | 1,298.5 | 1,315.5 | 1,333.5 | 1,354.5 | 1,369.9 | 1,385.9 | 1,405.0 | 1,423.0 | 1,423.5 | 1,438.5 | |
| Mobile Homes | 21.9 | 21.6 | 21.2 | 20.7 | 20.3 | 19.9 | 19.5 | 19.0 | 18.6 | 18.2 | 17.5 | 17.0 | |
Shares (%) | |||||||||||||
| Single Detached | 56.2 | 56.2 | 56.1 | 56.1 | 56.1 | 56.1 | 56.1 | 56.0 | 56.0 | 56.0 | 56.0 | 56.0 | |
| Single Attached | 14.0 | 14.1 | 14.2 | 14.3 | 14.4 | 14.5 | 14.6 | 14.7 | 14.8 | 14.9 | 15.0 | 15.1 | |
| Apartments | 29.3 | 29.2 | 29.2 | 29.1 | 29.0 | 29.0 | 28.9 | 28.9 | 28.8 | 28.7 | 28.7 | 28.6 | |
| Mobile Homes | 0.5 | 0.5 | 0.5 | 0.5 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.3 | |
Households by Energy Source (thousands) | |||||||||||||
| Electricity | 771.7 | 780.8 | 791.3 | 801.1 | 813.2 | 831.1 | 850.7 | 872.6 | 900.5 | 930.7 | 952.5 | 983.9 | |
| Natural Gas | 2,924.4 | 3,008.9 | 3,096.9 | 3,163.1 | 3,232.6 | 3,301.1 | 3,371.0 | 3,430.9 | 3,490.1 | 3,540.1 | 3,555.5 | 3,604.2 | |
| Heating Oil | 442.1 | 434.2 | 407.0 | 391.1 | 380.1 | 366.4 | 340.8 | 314.3 | 300.0 | 290.2 | 265.0 | 244.3 | |
| Other1 | 54.7 | 54.8 | 55.0 | 55.1 | 55.9 | 57.8 | 60.5 | 64.2 | 69.3 | 75.6 | 82.4 | 90.7 | |
| Wood | 98.0 | 96.0 | 100.0 | 108.6 | 109.2 | 117.1 | 113.8 | 120.3 | 118.5 | 114.1 | 106.7 | 100.8 | |
Shares (%) | |||||||||||||
| Electricity | 18.0 | 17.8 | 17.8 | 17.7 | 17.7 | 17.8 | 18.0 | 18.2 | 18.5 | 18.8 | 19.2 | 19.6 | |
| Natural Gas | 68.2 | 68.8 | 69.6 | 70.0 | 70.4 | 70.6 | 71.2 | 71.4 | 71.5 | 71.5 | 71.7 | 71.7 | |
| Heating Oil | 10.3 | 9.9 | 9.1 | 8.7 | 8.3 | 7.8 | 7.2 | 6.5 | 6.1 | 5.9 | 5.3 | 4.9 | |
| Other1 | 1.3 | 1.3 | 1.2 | 1.2 | 1.2 | 1.2 | 1.3 | 1.3 | 1.4 | 1.5 | 1.7 | 1.8 | |
| Wood | 2.3 | 2.2 | 2.2 | 2.4 | 2.4 | 2.5 | 2.4 | 2.5 | 2.4 | 2.3 | 2.2 | 2.0 | |